>Surely... if they know how inaccurate their measurement system is... They must have used a more accurate system to work that out right? Why not just always use

>Surely... if they know how inaccurate their measurement system is... They must have used a more accurate system to work that out right? Why not just always use the more accurate system? That isn't necessarily true. You can make a connection, send a known file and meter the connection on the home computer/router. Then see what the Comcast system measures.